kdump-logger.sh: Let dwarn always print "WARNING:" as prefix.

Currently, callers of dwarn() manually prepend prefixes like "WARNING:",
"Warning:", or "Notice:". This leads to inconsistent output and
redundant string management.

Update dwarn() in kdump-logger.sh to automatically include the
"WARNING:" prefix. All existing calls to dwarn() have been updated
to remove manual prefixes, ensuring a consistent log format across
kdumpctl, mkdumprd, and early-kdump.

Resolves: https://redhat.atlassian.net/browse/RHEL-120738

Signed-off-by: Lichen Liu <lichliu@redhat.com>

Author: Lichen Liu

dracut/99earlykdump/early-kdump.sh

@@ -35,7 +35,7 @@ early_kdump_load() {
     fi
 
     if is_fadump_capable; then
-        dwarn "WARNING: early kdump doesn't support fadump."
+        dwarn "Early kdump doesn't support fadump."
         return 1
     fi
 

kdump-lib.sh

@@ -473,7 +473,7 @@ prepare_kexec_args()
 		if [[ $? == 1 ]]; then
 			found_elf_args=$(echo "$kexec_args" | grep elf32-core-headers)
 			if [[ -n $found_elf_args ]]; then
-				dwarn "Warning: elf32-core-headers overrides correct elf64 setting"
+				dwarn "elf32-core-headers overrides correct elf64 setting"
 			else
 				kexec_args="$kexec_args --elf64-core-headers"
 			fi

kdump-logger.sh

@@ -363,7 +363,7 @@ dinfo()
 dwarn()
 {
 	set +x
-	dlog 2 "$@"
+	dlog 2 "WARNING:" "$@"
 	if [ -n "$debug" ]; then
 		set -x
 	fi

kdumpctl

@@ -192,7 +192,7 @@ rebuild_kdump_initrd()
 	fi
 
 	if check_earlykdump_is_enabled; then
-		dwarn "Tips: If early kdump is enabled, also require rebuilding the system initramfs to make the changes take effect for early kdump."
+		dwarn "If early kdump is enabled, also require rebuilding the system initramfs to make the changes take effect for early kdump."
 	fi
 
 	sync -f "$TARGET_INITRD"
@@ -274,7 +274,7 @@ backup_default_initrd()
 
 	dinfo "Backing up $DEFAULT_INITRD before rebuild."
 	if ! cp "$DEFAULT_INITRD" "$DEFAULT_INITRD_BAK"; then
-		dwarn "WARNING: failed to backup $DEFAULT_INITRD."
+		dwarn "Failed to backup $DEFAULT_INITRD."
 		rm -f -- "$DEFAULT_INITRD_BAK"
 		return
 	fi
@@ -303,7 +303,7 @@ restore_default_initrd()
 	# If a backup initrd exists, we must be switching back from
 	# fadump to kdump. Restore the original default initrd.
 	if ! sha512sum --status --check "$DEFAULT_INITRD_CHECKSUM"; then
-		dwarn "WARNING: checksum mismatch! Can't restore original initrd."
+		dwarn "Checksum mismatch! Can't restore original initrd."
 		return
 	fi
 
@@ -351,7 +351,7 @@ parse_config()
 			;;
 		raw)
 			if [[ -d "/proc/device-tree/ibm,opal/dump" ]]; then
-				dwarn "WARNING: Won't capture opalcore when 'raw' dump target is used."
+				dwarn "Won't capture opalcore when 'raw' dump target is used."
 			fi
 			_set_config _fstype "$config_opt" || return 1
 			config_opt=_target
@@ -367,12 +367,12 @@ parse_config()
 			elif [[ -f $config_val ]]; then
 				config_val=$(/usr/bin/readlink -m "$config_val")
 			else
-				dwarn "WARNING: '$config_val' doesn't exist, using default value '$DEFAULT_SSHKEY'"
+				dwarn "'$config_val' doesn't exist, using default value '$DEFAULT_SSHKEY'"
 				config_val=$DEFAULT_SSHKEY
 			fi
 			;;
 		default)
-			dwarn "WARNING: Option 'default' was renamed 'failure_action' and will be removed in the future."
+			dwarn "Option 'default' was renamed 'failure_action' and will be removed in the future."
 			dwarn "Please update $KDUMP_CONFIG_FILE to use option 'failure_action' instead."
 			_set_config failure_action "$config_val" || return 1
 			;;
@@ -634,7 +634,7 @@ check_fs_modified()
 	_new_mntpoint="$(get_kdump_mntpoint_from_target "$_target")"
 	_dracut_args=$(lsinitrd "$TARGET_INITRD" -f usr/lib/dracut/build-parameter.txt)
 	if [[ -z $_dracut_args ]]; then
-		dwarn "Warning: No dracut arguments found in initrd"
+		dwarn "No dracut arguments found in initrd"
 		return 0
 	fi
 
@@ -912,7 +912,7 @@ save_raw()
 	}
 	check_fs=$(lsblk --nodeps -npo FSTYPE "$raw_target")
 	if [[ $(echo "$check_fs" | wc -w) -ne 0 ]]; then
-		dwarn "Warning: Detected '$check_fs' signature on $raw_target, data loss is expected."
+		dwarn "Detected '$check_fs' signature on $raw_target, data loss is expected."
 		return 0
 	fi
 
@@ -1029,10 +1029,10 @@ fadump_bootargs_append()
 			output=$(cat "$FADUMP_APPEND_ARGS_SYS_NODE")
 			dinfo "fadump: additional parameters for capture kernel: '$output'"
 		else
-			dwarn "WARNING: failed to setup additional parameters for fadump capture kernel: '$output'"
+			dwarn "Failed to setup additional parameters for fadump capture kernel: '$output'"
 		fi
 	else
-		dwarn "WARNING: this kernel does not support passing additional parameters to fadump capture kernel."
+		dwarn "This kernel does not support passing additional parameters to fadump capture kernel."
 	fi
 }
 
@@ -1183,7 +1183,7 @@ prepare_luks()
 
 	# Currently only x86_64 is supported
 	if [[ "$(uname -m)" != "x86_64" ]]; then
-		dwarn "Warning: Encrypted device is in dump path, which is not recommended, see kexec-kdump-howto.txt for more details."
+		dwarn "Encrypted device is in dump path, which is not recommended, see kexec-kdump-howto.txt for more details."
 		return 0
 	fi
 
@@ -2148,7 +2148,7 @@ check_vmcore_creation_status()
 	[[ $DEFAULT_DUMP_MODE == "kdump" ]] || return
 
 	if [[ ! -s $VMCORE_CREATION_STATUS ]]; then
-		dwarn "Notice: No vmcore creation test performed!"
+		dwarn "No vmcore creation test performed!"
 		return
 	fi
 
@@ -2182,10 +2182,10 @@ check_vmcore_creation_status()
 		dinfo "Notice: Last successful vmcore creation test on $_status_date"
 		;;
 	fail)
-		dwarn "Notice: Last NOT successful vmcore creation test on $_status_date"
+		dwarn "Last NOT successful vmcore creation test on $_status_date"
 		;;
 	manual)
-		dwarn "Notice: Require manual check for vmcore creation test of $_status_date"
+		dwarn "Require manual check for vmcore creation test of $_status_date"
 		;;
 	*)
 		derror "Unknown vmcore creation test status: $_status"

mkdumprd

@@ -192,8 +192,8 @@ check_size()
 	esac || perror_exit "Check dump target size failed"
 
 	if [[ $avail -lt $memtotal ]]; then
-		dwarn "Warning: There might not be enough space to save a vmcore."
-		dwarn "         The size of $2 should be greater than $memtotal kilo bytes."
+		dwarn "There might not be enough space to save a vmcore."
+		dwarn "The size of $2 should be greater than $memtotal kilo bytes."
 	fi
 }
 
@@ -290,7 +290,7 @@ verify_core_collector()
 
 	if [[ $_cmd != "makedumpfile" ]]; then
 		if is_raw_dump_target; then
-			dwarn "Warning: specifying a non-makedumpfile core collector, you will have to recover the vmcore manually."
+			dwarn "Specifying a non-makedumpfile core collector, you will have to recover the vmcore manually."
 		fi
 		return
 	fi